WO2012149428A3 - Systems and methods for g.vector initialization - Google Patents

Systems and methods for g.vector initialization Download PDF

Info

Publication number
WO2012149428A3
WO2012149428A3 PCT/US2012/035600 US2012035600W WO2012149428A3 WO 2012149428 A3 WO2012149428 A3 WO 2012149428A3 US 2012035600 W US2012035600 W US 2012035600W WO 2012149428 A3 WO2012149428 A3 WO 2012149428A3
Authority
WO
WIPO (PCT)
Prior art keywords
dsl
super
joining
systems
orthogonal pilot
Prior art date
Application number
PCT/US2012/035600
Other languages
French (fr)
Other versions
WO2012149428A2 (en
Inventor
Amitkumar Mahadevan
Kevin D. Fisher
Nicholas P. Sands
Original Assignee
Ikanos Communications, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ikanos Communications, Inc. filed Critical Ikanos Communications, Inc.
Priority to JP2014508140A priority Critical patent/JP5989093B2/en
Priority to KR1020137029862A priority patent/KR101658971B1/en
Priority to EP12776439.7A priority patent/EP2702739B1/en
Priority to CN201280020817.4A priority patent/CN103503398B/en
Publication of WO2012149428A2 publication Critical patent/WO2012149428A2/en
Publication of WO2012149428A3 publication Critical patent/WO2012149428A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/32—Reducing cross-talk, e.g. by compensating
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/14—Multichannel or multilink protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Methods, apparatuses (e.g., DSL system hardware, DSL systems, vectoring control entities), techniques, systems, etc. are used for initializing one or more DSL lines joining a vectored DSL line group operating in Showtime. A super-periodic orthogonal pilot sequence from a set of super-periodic orthogonal pilot sequences is assigned to each joining DSL line, wherein each such super-periodic orthogonal pilot sequence in the set has length L and is orthogonal to other sequences in the set over length T. These super-periodic orthogonal pilot sequences are used on the joining DSL lines to generate at least T sync-symbols worth of initialization data, which is processed to generate initialization data and FEXT mitigation coefficients for use when the joining DSL lines become part of the vectored DSL line group.
PCT/US2012/035600 2011-04-27 2012-04-27 Systems and methods for g.vector initialization WO2012149428A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2014508140A JP5989093B2 (en) 2011-04-27 2012-04-27 G. System and method for VECTOR initialization
KR1020137029862A KR101658971B1 (en) 2011-04-27 2012-04-27 Systems and methods for G.vector initialization
EP12776439.7A EP2702739B1 (en) 2011-04-27 2012-04-27 Systems and methods for g.vector initialization
CN201280020817.4A CN103503398B (en) 2011-04-27 2012-04-27 Systems and methods for G.vector initialization

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161479764P 2011-04-27 2011-04-27
US61/479,764 2011-04-27

Publications (2)

Publication Number Publication Date
WO2012149428A2 WO2012149428A2 (en) 2012-11-01
WO2012149428A3 true WO2012149428A3 (en) 2013-01-03

Family

ID=47067894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/035600 WO2012149428A2 (en) 2011-04-27 2012-04-27 Systems and methods for g.vector initialization

Country Status (6)

Country Link
US (1) US9270831B2 (en)
EP (1) EP2702739B1 (en)
JP (1) JP5989093B2 (en)
KR (1) KR101658971B1 (en)
CN (1) CN103503398B (en)
WO (1) WO2012149428A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102859984B (en) * 2011-07-27 2016-01-20 华为技术有限公司 Support the methods, devices and systems of non-vectored lines
US10033431B2 (en) * 2013-05-05 2018-07-24 Lantiq Deutschland Gmbh Training optimization of multiple lines in a vectored system using a prepared-to-join group
BR112015028133B1 (en) * 2013-05-13 2022-12-06 Lantiq Beteiligungs-GmbH & Co. KG SPECIAL OPERATIONS CHANNEL IN VECTORIZED SYSTEMS
WO2015127624A1 (en) * 2014-02-27 2015-09-03 华为技术有限公司 Crosstalk channel estimation method, vectoring control entity and osd system
US9509518B2 (en) * 2014-05-20 2016-11-29 Ikanos Communications, Inc. Method and apparatus for managing joining events for G.fast vectoring with discontinuous operation
CN107925437B (en) * 2015-11-12 2020-07-21 华为技术有限公司 Method and apparatus for digital subscriber line initialization

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090296792A1 (en) * 2007-11-29 2009-12-03 Fang Liming Method, device and system for eliminating DSL crosstalk
US20090310502A1 (en) * 2008-06-16 2009-12-17 Nuzman Carl J Device and associated method for crosstalk estimation
US20100202281A1 (en) * 2009-02-12 2010-08-12 Gerhard Guenter Theodor Kramer Simultaneous Estimation of Multiple Channel Coefficients Using a Common Probing Sequence
US20110075834A1 (en) * 2009-09-30 2011-03-31 Ashikhmin Alexei E Crosstalk control using delayed post-compensation in a multi-channel communication system

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US20050195892A1 (en) 2004-03-05 2005-09-08 Texas Instruments Incorporated Training and updating for multiple input-output wireline communications
US20060176942A1 (en) * 2005-02-07 2006-08-10 Vladimir Oksman On-line reconfiguration and synchronization protocol for multi-carrier DSL
KR101364327B1 (en) 2006-08-25 2014-02-18 이카노스 테크놀러지 리미티드 SYSTEMS AND METHODS FOR MIMO PRECODING IN AN xDSL SYSTEM
US7843949B2 (en) 2007-08-17 2010-11-30 Lantiq Deutschland Gmbh Communication apparatus and method with changing composition of a vectored group
US8817907B2 (en) 2008-03-26 2014-08-26 Ikanos Communications, Inc. Systems and methods for signaling for vectoring of DSL systems
US9287928B2 (en) * 2008-04-24 2016-03-15 Lantiq Deutschland Gmbh Method and apparatus for adding a communication connection to a vectored group
US8644497B2 (en) 2008-04-24 2014-02-04 Lantiq Deutschland Gmbh Method and apparatus for adding a communication connection to a vectored group
US8630383B2 (en) 2008-08-22 2014-01-14 Alcatel Lucent Communication system for transmitting sync-flags and pilot symbols and method thereof
TWI382711B (en) * 2008-10-09 2013-01-11 Realtek Semiconductor Corp Communication device with adjustable consuming power and method thereof and ethernet communication device
US8179774B2 (en) 2009-01-30 2012-05-15 Lantiq Deutschland Gmbh Cross-talk coefficient updating in vector transmission
EP2219316A1 (en) * 2009-02-13 2010-08-18 Alcatel Lucent Method and apparatus for assigning pilot sequences for further crosstalk evaluation
US8422541B2 (en) * 2009-05-29 2013-04-16 Alcatel Lucent Channel estimation in a multi-channel communication system using pilot signals having quasi-orthogonal subpilots

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090296792A1 (en) * 2007-11-29 2009-12-03 Fang Liming Method, device and system for eliminating DSL crosstalk
US20090310502A1 (en) * 2008-06-16 2009-12-17 Nuzman Carl J Device and associated method for crosstalk estimation
US20100202281A1 (en) * 2009-02-12 2010-08-12 Gerhard Guenter Theodor Kramer Simultaneous Estimation of Multiple Channel Coefficients Using a Common Probing Sequence
US20110075834A1 (en) * 2009-09-30 2011-03-31 Ashikhmin Alexei E Crosstalk control using delayed post-compensation in a multi-channel communication system

Also Published As

Publication number Publication date
US9270831B2 (en) 2016-02-23
EP2702739A4 (en) 2015-03-11
JP5989093B2 (en) 2016-09-07
EP2702739A2 (en) 2014-03-05
KR101658971B1 (en) 2016-09-30
US20120275591A1 (en) 2012-11-01
CN103503398B (en) 2017-02-08
WO2012149428A2 (en) 2012-11-01
JP2014514869A (en) 2014-06-19
KR20140024373A (en) 2014-02-28
CN103503398A (en) 2014-01-08
EP2702739B1 (en) 2018-04-25

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